The size of a stone used on a road must be in due proportion to the space occupied by a wheel of ordinary dimensions on a smooth level surface. This point of contact will be found to be longitudinally about 25 mm and every piece of stone put into a road which exceeds 25 mm in any of its dimensions is mischievous. This statement is according to Macadam.
A)Correct
B)Incorrect

Question

Quizplus · Accepted Answer

John Loudon McAdam, a Scottish engineer, emphasized the importance of using small, uniformly sized stones for road construction. He suggested that the stones should not exceed 40 mm in any dimension, aiming for them to compact under traffic into a solid layer. The specific measurement of 25 mm mentioned aligns with his principles of ensuring stones are not too large to prevent a smooth surface and effective compaction.

The Size of a Stone Used on a Road Must